Carbureter.



c.' l. PLACE.

` CARBULRET'ER. l APPLICATION FILED HAR. 22. I9I6.

Patented Jan. 30, ISI? 2 SHEETSMSHEET l.

m l: l a I 1f, IVIE ,f .I IS7/MA La UNITED STATES PATENT OFFICE.

CHARLES IBVIG PLACE, Olf SHARDN, CONNECTICUT.

CARBURETEB.

Specication. of Letters Patent.

Patented aan. so, 1917.

Application led March 22, 11.316. Serial No. 85,818'8.

To all 'whom it may concern Be it known that I, CHARLES IRvrNo PLAGE, a4 citizen of the United States, residing at Sharon, in the county of Litchiield4 and State of Connecticut, have invent-- ed certain new and useful Improvements in' Carbu'reters, of which the following is a specification.V

This invention appertains to the art of carbureting devices of the type commonly employed for controlling the admission of fuel to the cylinder lor cylinders of internal combustion engines. The constantly increasing cost of hydrocarbon fuels for explosive engines is so obviously detrimental to the economical operation of this class of motorsas to .make it a desideratum of great `importance at this vtime. to meet the need for al compact carbureting means of simple design capable of vaporizing lower grade hydrocarbons with those of 'the more relined class for the creation of a propel' admix'ture to provide an economical fuel for the purposes hereinbefore referred to.

With the foregoing object in view the carbureting means of this invention has been designed and comprises a structure preferably embodying suitable supply mea ns for supplying hydrocarbons such as gasolene, kerosene and the like to a suitable mixv111g chamber, previously beating the said fuel elements along with Water also conducted from a suitable supply chamber wherebyto obtain a mixture having the requisite combustion factor whereby to obtain a'high degree of elliciency in respect to power produced incident to the explosion of the mixture in the cylinder or cylinders of an internal combustion eugine.

More specifically speaking, the carbureting ldevice of the invention comprises the usual suction valve yassociated with and adapted to operate suction tubes leadingto the supply chambers for gnsolene` kerosene (or equivalent.hydrocarbons)` and water, said tubes` enacting with valves controlling the admission of said fuel elementsto the' mixing chamber.'

It is contemplated to provideA a heating chamberV surrounding .the several suction tubesand which heating chamber is heated thefexhaust products issuing from the motor with which the carbureting device is connected, `said heating chamber, further'- more, being advantageously designed with a view to heating the air adapted to be supplied to theY fhl` elements previously referred to, and the suction valve interiorly designed so as to control the. passage of the said air from the air supply, chamber into the mixing chamber. The sefeatures of the design of the carbureting device are essen- 4tial and important to the invention and Will be understood more fully upon reference to the aftergoing detail description, when consulted in conjunction with the accompanying drawings, in which- `ignre l is a view in front elevation illus* trating the intake and exhaust Vmanifolds of a conventional type of explosive engine and illustrating the carbureting device operatively arranged in respect thereto. Fig. 2 is a vertical sectional view through the carbureting device alone. Fig. 3 is a horizontal.

section taken about on the line BH3 of Fig.,

2. Figs. 4 to? inclusive are correspondingv horizontal sectional views taken about on the lines 4-i, 5 5, 6-6 and. 7--7 respectively of Fig. 2. Fig. 8 is a ,fragmentary sectional view of the exhaust pipe showingthecarbon screen or baille disposed therein. Fig. 9 is a fragmentaryview bringing iut more clearly the formation of the 'upper end of the suction tubes at the point of connection with the suction valves.

ln the drawings, A denotes the intake manifold and B the exhaust manifold of a four cylinder type explosive engine, the exhaust pipe C leading from the exhaust manifold B and; there being provided intermediate the parts B and C the branch ex-4 haust pipe D containing at a suitable point in its length the baffle 1 in the form of a screen or other foraminous member the purpose of which is'to prevent carbon or other foreign particles from passing into the heat-- ing chamber of the carbureting'device now to' be described. t

The carbureting device is seen best in Fig. 2 of the 'drawings wherein the internal construction is clearly 'illustrated Said device comprises a suitable casing Q, the upper portion ofjvhich is made in sections of somewhat rounded conformation so a's to provide valve 6 is normally held. in a position with'.

its periphery seated against the curvedl wall of the mixing chamber, thereby closing the passage leading "from the air chamber 12 to said mixing chambcr.- The air chamber 12 surrounds a heating chamber 13,- the two be-Y ing separated by a wall or partition 14;. Disposed so to operate in the heating chamber 15% are the suction tubes 15 the upper ends olf which arejo'ined by arms l5, scc Fig. S), wi'th'the Valve 6, the latter havilxg openings coinciding with the adjacent open adapted to move.

ends oi' the tubes l5 and within which. opcn ings the arms 1fa are fixed. The chamber 13 heated by means ot' exhaust gases supplied thereto-by the branch exhaust pipe D which is coupled with the casing Zat the inlet andy outlet passages 16 and 1.7, respectively, these passages leading through-the air chamber 12v to said heating' chamber, as seen best in Figs. 2 and 5. In order that the suction tubes or conduits' 15 may not be too intensely heated it is preferred that they be surroundedl by the tubular membersI 18 to thereby establish subsidiaryheating chambers 19 within which 1 tubes 15 upward and permit 0f the passage the tubes or conduits 15 are mounted and 'Thebottom of the heating chamber 13, designated 20, is supplied with apertures through which theseveral tubes 15 pass and project sufficiently far downward for 4co- -operation with the needle valves 21 adapted for adjustment b the usual finger pieces 22. The parts 15 an 21 engage. and coact with one another in the fuel'supply chambers 23,

24 and 25, ysee Fig. 7, which chambers respectively are adapted to contain fuel constituents such as asolene, kerosene and water, or any other slmllar or equivalent constituen'ts such as have been found practicable for use for explosive purposes in connection withhthe eticient operation dfyinternal combustion engines. The several'supply-chambers 23, 24 and 25 are separated by partitions.

2o and said chambers are in communication with the oat chambers 27, 28 and 29 respectively.'

The passage ofthe fuel constituents froml the respective chambers 27, 28 and 29` to the associated supply chambers is controlled by suitable valves 30, see Fig. 7, and these valves 30 may be so manipulated andadjustcd as to vary the proportion of the constituents and 29 will be connected suitable supply pipes 32 for the respective fuel constituents conducted to said chambers, and any convenf tional type of lloat 3? will'be located in each of these float chambers.

To afford a most suitable mounting for the valve 6, the latter is provided with a pendent annular fia-nge C@ adapted to surround and it over the upper and of the chamber 13 forx'ucd by thc head il and the partition or wall 14, any tendency for vbratinof the valve .or inaccurate seating action being avoided in this manner.

' lVith the foregoing underslstanding of the construction of the carburcting device, the practical operation of the same may be briefly set forth as lfollows: The lower end of .the air chamber 1'2 being open to the atmosphere as seen in Fig. 2, it will be understood that upono ening of the valve 6 by the surtion pull o the engine said valve by its opening movement will carry the suction of the fuel constituents from the sup ly chambers 23,l 24 and25 through said tu s lto the mixing chamber 3. Coincident with chamber 12 is, of course, heated by the wall or partition 14 between the chamber-12 and the chamber 13 and in like manner` the fuel constituents are heated owing to the fact .that the tubes 15v will be kept warm by the heat of the exhaustgases passing as they do through theychamber 13 and freely circulating around thetubularmembers 18. It is preferred that the upper end ofthe chamber l"13 shallbe closed by a head A31 which heed of course has openings Vat the points where the parts 18 connect therewith.

While the general formation and assemblance ofthe parts of the carbureting device is preferably as' disclosed in the ldrawings and set forth inthe preceding description,

of air to ,the mixing chamber from vthe air chamber, and fuel supply means controlled by said valve` and adapted to be heated by said heating chamber.

5. In a carbureter, a casing provided with a mixing chamber and divlded into inner and outer heating and air chambers respeci tively, the latter having an air supply opening and being separated from the heating chamber by a partition, means for supply# ing a heating medium to the heating chamber whereby to heat said partition and thereby heat the air passing through the air chamber, a valve controlling the admission of air to the mixingchamber from the air chamber, fuel supply tubes connected with f ing and being separated from the heating of the .first mentioned valve, and tubular chamber by a partition, means for supplying a heating medium to the heating chamber whereby to heat. said partition and thereby hea-t the air passing through the air chamber, a valve controlling the admission of air to the mixing chamber from the air chamber, fuel supply tubes connected with said valve and passing through the heating chamber, other valve means coasting with said .tubes and the action of which in coperation with the tubes is governed by the movement members Ltisposed in the heating chamber surrounding said tubes to prevent direct action of the heat in said chamber upon the tubes.vv

7, A carbureter comprising a casing having at its upper portion a mixing chamber and at its lower portion concentric air and v heating chambers, the latter disposed within the air chamber and separatedv therefrom by' a partition, a. valve mounted in the mixing chamber and-normally closing the space between the heating and air chambers and shutting oil communication between the air chamber and the mixing chamber', and fuell supply means for conducting fuel constitluents through the heating chamberinto the,

mixing chamber and controlled. in action by said valve.

8. A carbureter comprising a casing having at its upper portion a mixing chamber..

and at its lower portion concentric air and heating chambers, the latter disposed within the air chamber and-separated therefrom by a partition, a valve mounted in the mixing chamber and normally iosing the space between the heating and air` chambers and shutting oil' communicationbetween the air ply tubes -connected with said valve and movable thereby through the heating cham-4 ber, and other valves coacting with the said tubes and governed in their coaction by the movement of the tubes with the first named valve.

. 9. A carbureter comprising a casing having at its upper portion amixing chamber and at its lower portion concentric air and heating chambers, the latter disposed within the air chamber and separated therefrom by a partition, a valve mounted in the mixing chamber and normally closing the space between the vheating and air chambers and shutting offcommunication between the air chamber and the mixing chamber, and fuel supply tubes connected with said valve and in communication with the mixing chamber, said tubes passing through opposite ends of the heating chamber and being movable by said valve, other valves adapted to close the inlet ends of sa id tubes and governed in their action by the movement of the tubes rela'- tively thereto incident to the movement of the first named valves. e

'10. A carbureter comprising a casing having at its upper portion a mixing chamber and at its lower portion concentrlc air arid Y heating chambers, the latter disposed within the air chamber and separated therefrom by a partition, a valve mounted in the mixing chamber and normally closing the space between the heating and air chambers and shutting off, communica-tion between the air chamber and the mixing chamber, fuel su`pply tubes connected with said valve and in communication with the mixing chamber,

said tubes being movable by said valve, and other valves adapted to close the inlet ends of said tubes and governed in their action by the movement of theV tubes relatively thereto incident to the movement of the first named valves, the said casing being formed with separate fuel supply chambers each adapted to communicate with a. 'respective tubes-connected with said valve and passing through the heating chamber, the casing being divided at its lower portion into fuel supply chambers communicating with the' lower ends of said tubes,'valves in said supply chambers adapted to closetheA lower ends of the tubes until the latter"are opened by the movement of the tubes with the first mentioned valve, the casing having a heat conducting passage leading through the air chamberan communicating with the heating chamber.

- '12./A---carbureter comprising a casing '-having at its upper end a mixing chamber and its lowerportion divided intoupper and f outer heating chambers respectivelyythe latter having lan Aair inlet opening, a valve disposed inthe mixing chamber and arranged to cut olf communication between said chamber and the air chamber, fuel conducting Mtubesconnected with said valve and passing through .the heating chamber, the casing i being divided at. its lower portion into fuel lsupply chambers communicating with the lower ends of said' tubes, valves in said supply chambers. adapted to close the lower conducting 4air chamber'nd communicating with the ends of the tubes until the latter are opened by the movement of the tubes with the first mentionedjfati,l the casing having a heat gas-nage leading through the heating chamber, aspringdisposed in the mixing. chamber and' Vengaging the first name valve to vnormally 'hold the same in a) position closing comnuinication between the air and mixing chambers, a'ring connectedr with said spring, and means to adjust said ring to vary the Vtension of the spring. v

13. A carbureter comprising a casing having at 'its upper end a mixin chamber and provided atits lower end wit separate fuel rsupply chambers and intermediate said mixing" and fuell supply chambers formed with inner'and outer heating and air chambers Vrespectively, one' surrounding the other, a

valve controlngthe `admission 'of air to 'the' mixing chamber from the air chamber,

"and vfuel conducting tubes leading from the fuel supply chambers through the heating chamber to the mixing chamber, and means 'governed y by said .valve for controlling the fadmission of fuelto the mixing chamber through saidtubes 14.l ,A carbureter comprising a casing having a f i p pere'ndAal mixing chamber and ing'4 fuelfsupplly chambers formed with inner and 'outer eating and air chambers nespective1y,`one surrounding the'other, a

valve -colitrolll'ig the admission of air to the mixingl chamber from the 'air chamber, fuel tubes leading from the fuel supy, tilts lwerend with separate fuel I' ,suppl'yfchambers vand, intermediate said mx ply chambers through the heating chamber to the mixing chamber, and means governed said valve for controlling theladmission b. ci, fuel to the mixing chamber through said tubes, the casing being formed with a passage for conducting the heating medium to the heating chamber whereby to heat the tubes passing through the latter andto heat 'air passing through the surrounding air chamber. y I" V v15. In a'carbureting-means' of the class described, the combination of a mixing arsy ' chamber, a valve for controlling admission of fuel constituents to said chamber2 sucl tion tubes and coacting valve means controlled by the first named valve and adapt#A ed to supply fuel constituents to said cham; l

ber, tubular members surrounding saids'llc-i tion tubes and spaced therefrom to form heating spaces about the tubes, and. means to heat said tubular members and thereby correspondingly heat the suction tubes.

16.`In a carbureting means of the class described, the combination of a, mixing chamber, a valve for controlling admission ofY fuel constituents to said chamber, suction `tubes and coacting valve means controlled by the first named valve and adapted to supply fuel constituents to said chamber,

tubular members surrounding said' suction tubes and spaced therefrom to form heating spaces about the tubes,' andmeans to heat said tubular members and thereby correspondingly heat the suction tubes, comprisin'g an exhaust passage for conducting exhaust gases' from t e motor equipped wit the said carbureting means to act upon the tubular members for heating purposes.

17. In carbureting means `as set forth, the

combination with a casing having a` mixing chamber, of fuel sup ly means .communicating with said cham er andan air chamber also adapted to supply air to the mixing chamber, 'exhaust passagesV leading. to` 'the fuel supply means for causing heatlng of the latter by exhaust gases from a motoryequipped withV the carbureting means, said air -chamber being provided with air inlet ports located proximate to said exhaust passages wherebv ythe air drawn mto the 4air chamber will be heated owing to' such pro'ximity of the air inlet ports and exhaust-passa c xstestimony whereof I aix my signature. CHARLES IRVING PLACE. 

